Antenna feed horn



FIG. 1 is a top perspective view of an antenna feed horn showing my new design;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a cross-sectional view thereof, taken along line 3—3 in FIG. 2.

The broken line showing of elements of the antenna feed horn depicts environment only and forms no part of the claimed design. 

The ornamental design for the antenna feed horn, as shown and described. 